Operator Manual User guide

2014-04-15 Table of Contents Index 175-157M
Great Plains Manufacturing, Inc. Table of Contents Index Troubleshooting 39
Troubleshooting
Problem Solution
Uneven seed spacing or
uneven stand
Check for plugging in seed cup.
Check if seed tubes are plugged.
Reduce ground speed.
Check that opener disks turn freely.
Use a faster drive type and close seed cup doors to narrower position.
Check if opener frame has too little down pressure to penetrate soil. Increase down
pressure on openers if necessary. See “Opener Frame Down-Force” on page 32.
Check if opener frame has too much down pressure, and rows are not running level.
Decrease down pressure if necessary. See “Opener Frame Down-Force” on
page 32.
Check for trash or mud buildup on Seed-Lok
®
wheels. Lock up if necessary. See
“Seed-Lok
®
Seed Firmer Lock-Up” on page 37.
Chain skipping check for loose idlers and excess slack.
End Wheel slippage conditions may be too wet for planting.
Opener disks not turning
freely
Check for trash or mud buildup between disks.
Check disk scraper adjustment (standard slotted scraper.)
Check for trash or mud buildup on disk scrapers.
Check disk bearings.
Check opener frame for possible damage.
If opener disks turn freely by hand but not in field, reduce down pressure. See
“Opener Frame Down-Force” on page 32.
Check presswheel adjustment for seeding depth. See “Opener Depth (Press Wheel
Height)” on page 38.
Actual seeding rate
is different than desired
Check tire pressure. See “Tire Inflation Chart” on page 58.
Check end wheels. Proper size is 7.5 x 20, 4-ply Rib Implement.
Check for buildup of seed treatment. Regularly clean off buildup.
Check seed rate setting. See Seed Rate Manual.
Consider your seed weight. Seed rate charts are based on average seed weights.
Excessive seed cracking Use slower drive type and open seed cup doors to a wider position.
Acremeter doesn’t
measure accurately
Meter readings are not precise. Acremeters are factory-programmed for average drill
swath, but not particular row spacings. Also, they include a compensation for nominal
wheel slippage that may vary from your conditions.
Check tire size and pressure. See “Tire Inflation Chart” on page 58.
Check planting operation for excessive overlap or gaps between passes.
Check that your acremeter is for your drill. Verify revolutions per acre when display is
active. See “Acremeter Operation” on page 27.